Carrier for pneumatic-despatch apparatus.



No. 779,638. PA'TENTED JAN. 10, 1905. 0. H. BURTON. CARRIER FORPNEUMATIC DESPATGH APPARATUS.

APPLICATION FILED APR. 23, 1904.

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No. 779,638. PATENTED JAN. 10, 1905.

' G. H. BURTON. CARRIER FOR PNEUMATIC DESPATGH APPARATUS.

APPLICATION FILED APR. 23, 1904.

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QIQQQI UNITED STATES Patented January 10, 1905.

PATENT OFFICE.

CHARLES H. BURTON, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO AMERICANPNEUMATIC SERVICE COMPANY, OF DOVER, DELA- WARE, A CORPORATION OFDELAWARE.

CARRIER FOR PNE UMATlC-DESPATCH APPARATUS.

SPECIFICATION forming part of Letters Patent No. 779,638, dated January10, 1905.

Application filed April 23, 1904:. Serial No. 204,616.

To all whom Lt may concern:

Be it known that I, CHARLES H. BURTON, of Boston, in the county ofSutfolk and State of Massachusetts, have invented certain new and usefulImprovements in Carriers for Pneumatic-Despatch Apparatus, of which thefollowing is a specification.

My invention relates to new and useful improvements in carriers forpneumatic despatch-tube apparatus; and its object is to produce awater-tight cover for the open end of the carriers with improved lockingmechanism for said cover.

A further object of my invention is to provide mechanism for locking thecover to the shell of the carrier before the carrier can be insertedinto the tube.

My invention consists of certain novel features hereinafter described,and particularly pointed out in the claims.

In the accompanying drawings, which illustrate a construction embodyingmy invention, Figure 1 is a perspective view in elevation of one head ofthe carrier with the cover locked in position. Fig. 2 is a similar viewto Fig. 1, showing the position of the parts when the cover is eitherbeing locked to the carrier or unlocked therefrom. Fig- 3 is across-sectional View from one end of the carrier and cover with theoperating-lever in full lines. Fig. 4 is a side elevation of one end ofthe carrier, showing the cover in its open position.

Like letters of reference refer to like parts throughout the severalviews.

A represents the shell of the carrier, provided near one end with afriction-packing A of ordinary construction, and to the exterior of theshell at one end is secured the plate B by the bolts B. In the eyes inthe upper end of this plate B is located a shaft B and on said shaft isloosely mounted the eye B of the plate B", secured by the bolts B to thecover C, (see Fig. 3,) and by this arrangement the cover and shell arepivotally connected. This cover C is provided with anoutwardly-extending vertical circular flange C, provided with atransverse rim C which fits over the outer end of the shell A, Fig. 3.Secured in the shaft F, to which is fixed fast the toothed segment-gearG, and secured fast to said gear.

is the lever G, having the handle g; This toothed segment-gear engageswith the rack G on the bar G to reciprocate the same in the top of thecover. On one end of said rack-bar G is a bolt G controlled in itsmovement by the guide Gr fast on the top of the cover C, and said boltis adapted to move outwardly to engage the holes G G, respectively, inthe flange C and shell A of the carrier. In the opposite end of therack-bar G are located two semicircular recesses J, in which are locatedthe rounded ends K of the bell-crank levers K, pivoted at K to the coverC. The other ends of the bell-crank levers arepivoted at L to the boltsL, controlled in their movements by the guides L secured to the cover C.Located within the cover C is a yielding buffer-head M, secured to theshell of the carrier by bolts M. Over this buffer-head there is adaptedto move the lever H on the pin H, located in the top of the bracket H,which is secured by suitable bolts to the cover C. (See Fig. 3.) Theopposite end of the lever H is cut away, as shown at H leaving twoprojecting edges H. (See Fig. 1.) When the cover is locked to the shellof the carrier, as shown in Fig. 1, this lever H is Within thecircumference of the shell of the carrier and does not interfere withthe insertion of the carrier into the tube; but when the cover is beinglocked or is unlocked, as shown in Figs. 2 or 3, or when the cover isentirely open, as shown in Fig. 4, this lever H projects beyond theperiphery of the cover, and consequently beyond the shell of thecarrier, and

the carrier cannot be inserted into the tube for transmission. WVhen thelever G is pushed down to operate the bolts and lock the cover to theshell of the carrier, it takes the position shown in Fig. 1, so that theedges H of the lever do not contact with this lever, and therefore allowthe lever H to be moved around into its locked position. (Shown in Fig.1.) With the lever G in the position shown in Figs. 2 or 3 the lever Hcannot be moved inwardly, so as to Withdraw it within the periphery ofthe cover, as the edges H will contact with the lever Gr, so that thislever H can only be operated to be brought within the periphery of theshell of the carrier when the lever G is down in its locked position.(Shown in Fig. 1.)

With the parts in the position shown in Fig. 4c, the articles havingbeen placed in the carrier, the cover is moved over and closed in theposition shown in Fig. 3. The operator then taking hold of the handle 9moves the lever Gr toward the right, thereby operating the rack-bar Gthe bolt G and bolts L, which pass through openings G G in the cover andshell of the carrier, respectively. After the lever G has been pressedfully down, Fig. 1, the operator takes hold of the lever H and bringsthe same round into the position shown in Fig. 1, thereby preventing thelever G from rising and withdrawing the bolts and unlocking the coverfrom the shell of the carrier. During transmission in the tube thisleverH cannot move out sufliciently to allow the lever G to move upwardly tounlock the bolts. When the carrier reaches its destination, the operatortaking hold of the lever H moves the same to the position shown in Fig.3, then taking hold of the handle 9 lifts up the lever G, therebyWithdrawing the bolts and unlocking the cover from the shell of thecarrier, when said cover can be raised or opened for the removal of thearticles. This operation for the locking and unlocking is repeated foreach trip of the carrier through the tube. This construction of thecover, together with the locking mechanism, prevents water which mightbe in the transmissiontube from entering the carrier.

From the foregoing it is clear that when the lever H extends beyond theperiphery of the carrier the carrier cannot be inserted into the tube,and when the locking operation has taken place and the lever H is movedaround into the position shown in Fig. 1 the lever G is prevented frommoving upward, and consequently the bolts cannot be Withdrawn and thecover is locked to the shell of the carrier until unlocked by theoperator at the other end of the line.

I do not limit myself to the arrangement and construction shown, as thesame may be varied without departing from the spirit of my invention.

Having thus described the nature of my invention and set forth aconstruction embodying the same, what I claim as new, and desire tosecure by Letters Patent of the United States, is

1. In a pneumatic-despatch-tube carrier, a plate pivoted to the shell ofthe carrier, a cover pivoted to said plate and provided with a circularflange to fit into the shell of the carrier, locking mechanism on theexterior of the cover for locking the cover to the shell of the carrier,a lever pivoted in the center of the exterior of the cover for lockingand unlocking said locking mechanism, and means pivoted on said coverfor holding said lever against displacement after locking the cover tothe shell of the carrier.

2. In a pneumatic-despatch-tube carrier, a plate pivoted to the shell ofthe carrier, a cover pivoted to said plate and provided with anoutwardly-projecting circular flange to fit into the shell of thecarrier, locking mechanism on the exterior of the cover for locking thecover to the shell of the carrier, a lever pivoted in the center of theexterior of the cover for locking and unlocking said locking mechanism,and means pivoted on said cover for holding said lever againstdisplacement after looking the cover to the shell of the carrier.

3. In a pneumatic-despatch-tube carrier, a plate pivoted to the shell ofthe carrier, a cover pivoted to said plate and provided with anoutwardly-projecting circular flange and a transverse rim adapted to fitrespectively Within the shell of the carrier and over the edge of theshell, locking mechanism on the exterior of the cover for locking thecover to the shell of the carrier, a lever pivoted in the center of theexterior of the cover for locking and unlocking said locking mechanism,and means pivoted on said cover for holding said lever againstdisplacement after the locking of the cover to the shell of the carrier.

4. In a pnuematic-despatch-tube carrier, a plate pivoted to the shell ofthe carrier, a cover pivoted to said plate, bolts on the exterior ofsaid cover for securing the cover to the shell of the carrier, arack-bar and cooperating bell-crank levers for operating said bolts, agear adapted to engage with the rack on said rack-bar for operating saidrack and said bellcrank levers to operate said bolts to lock and unlockthe cover, a lever for operating said gear and provided with asuitablehandle, and means pivoted on said cover for holding said lever againstdisplacement after the locking of the cover to the shell of the carrier.

5. In a pneumatic-despatch-tube carrier, a plate pivoted to the shell ofthe carrier, a cover pivoted to said plate, bolts on the exterior ofsaid cover for securing the cover to the shell of the carrier, arack-bar and cooperating bell-crank levers for operating said bolts, agear adapted to engage with the rack on said rack-barfor operating saidrack and said bellcrank levers to operate said bolts to lock and unlockthe cover, a lever for operating said gear and provided with a suitablehandle, and a lever adapted when located Within the circumferentiallimits of the carrier to prevent the movement of said gear-operatinglever.

6. In a pneumatic-despatch-tube carrier, a plate pivoted to the shell ofthe carrier, a cover pivoted to said plate, bolts on the exterior ofsaid cover for securing the cover to the shell of the carrier, arack-bar and cooperating bell-crank levers for operating said bolts, agear adapted to engage with the rack on said rack-bar for operating saidrack and said bellcrank levers to operate said bolts to lock and unlockthe cover, a lever for operating said gear and provided with a suitablehandle, and a lever mounted eccentrically on said cover and adapted whenlocated within the circumferential limits of the carrier to prevent themovement of said gear-operating lever and adapted to be moved withoutthe circumferential limits of the carrier to allow the unlocking of thecover and to prevent the insertion of the carrier into the tube.

7 In a pneumatic-despatch-tube carrier, a movable mover mounted on thebody of acarrier and provided with an outwardly-projecting circularflange and a transverse rim and adapted to fit respectively Within theshell of the carrier and over the edge of the shell, locking mechanismon the exterior of the cover for locking the cover to the shell of thecarrier, a lever pivoted in the center of the exterior of the cover forlocking and unlocking said locking mechanism, and means pivoted on saidcover for holding said lever against displacement after locking thecover to the shell of the carrier.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses,this 14th day of April,A. D.

CHARLES H. BURTON. Witnesses:

E. L. HARLOW, A. L. lVIESSER.

